/* ===========================
   RESET & BASE
=========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(to bottom, #001f3f, #004080, #66ccff);
  color: #fff;
  overflow-x: hidden;
  position: relative;
}

/* ===========================
   SNOW CANVAS
=========================== */
#snow-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  background: transparent !important;
}

/* ===========================
   MAIN CONTENT
=========================== */
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  padding: 140px 20px 50px;
  position: relative;
  z-index: 1;
}

/* LOGO */
.logo-container {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
}

.logo-container .logo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  opacity: 0;
  animation: logoGlow 3s linear infinite, fadeIn 1s forwards;
}

.logo-vector {
  position: absolute;
  top: 50%;
  width: 180px;
  height: auto;
  transform: translateY(-50%);
  z-index: -1;
  opacity: 0.9;
  filter: drop-shadow(0 0 20px #66ccff);
  animation: vectorGlow 3s linear infinite;
}

.logo-vector.left {
  left: -180px;
  transform: translateY(-50%) rotate(-10deg);
}

.logo-vector.right {
  right: -180px;
  transform: translateY(-50%) rotate(10deg);
}

/* ===========================
   ANIMASI
=========================== */
@keyframes logoGlow {
  0% { box-shadow: 0 0 8px #66ccff, 0 0 15px #99e6ff; }
  50% { box-shadow: 0 0 20px #ffffff, 0 0 35px #66ccff; }
  100% { box-shadow: 0 0 8px #66ccff, 0 0 15px #99e6ff; }
}

@keyframes vectorGlow {
  0% { filter: drop-shadow(0 0 8px #66ccff); }
  50% { filter: drop-shadow(0 0 25px #99e6ff); }
  100% { filter: drop-shadow(0 0 8px #66ccff); }
}

@keyframes fadeIn { to { opacity: 1; } }

/* ===========================
   HEADER & BANNER
=========================== */
h1 {
  font-size: 2.2em;
  margin-bottom: 20px;
  color: #ccefff;
  text-shadow: 0 0 10px #66ccff, 0 0 25px #ffffff;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s forwards;
  animation-delay: 0.3s;
}

.banner {
  margin-bottom: 30px;
  font-size: 1em;
  color: #ccefff;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}

.banner span {
  display: inline-block;
  padding-left: 100%;
  animation: scroll 12s linear infinite;
}

@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-100%); } }

/* ===========================
   NAV BUTTONS
=========================== */
.top-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
}

.nav-btn-strobo {
  padding: 10px 18px;
  font-size: 1em;
  border-radius: 8px;
  text-decoration: none;
  color: #fff;
  background: rgba(0,50,100,0.6);
  border: 2px solid #66ccff;
  text-shadow: 0 0 6px #99e6ff, 0 0 12px #66ccff;
  transition: all 0.3s;
  animation: frozenPulse 2.5s infinite;
}

.nav-btn-strobo:hover {
  transform: scale(1.1);
  border-color: #fff;
  text-shadow: 0 0 8px #fff, 0 0 16px #66ccff;
}

@keyframes frozenPulse {
  0% { box-shadow:0 0 6px #66ccff; }
  50% { box-shadow:0 0 15px #ffffff; }
  100% { box-shadow:0 0 6px #66ccff; }
}

/* ===========================
   LINK BUTTON
=========================== */
.link-btn {
  display: block;
  width: 100%;
  max-width: 300px;
  text-align: center;
  margin: 10px 0;
  padding: 18px 0;
  border-radius: 12px;
  font-size: 1.2em;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(45deg,#66ccff,#3399ff,#003366);
  box-shadow: 0 5px 20px rgba(102,204,255,0.6), inset 0 0 15px rgba(255,255,255,0.4);
  transition: transform 0.3s, box-shadow 0.3s;
}

.link-btn:hover {
  transform: scale(1.05);
  box-shadow:0 0 25px #99e6ff,0 0 50px #3399ff,inset 0 0 15px #fff;
}

.link-btn.login {
  position: relative;
  overflow: hidden;
}

.link-btn.login::before {
  content: '';
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg, rgba(255,255,255,0.2), rgba(255,255,255,0.8), rgba(255,255,255,0.2));
  transform: skewX(-25deg);
}

.link-btn.login:hover::before {
  left: 125%;
  transition: left 0.75s;
}

/* ===========================
   FOOTER
=========================== */
footer {
  text-align: center;
  padding: 20px 0;
  font-size: 0.9em;
  color: #000000;
  background: transparent !important; /* FIX TRANSPARAN */
}

/* ===========================
   WHATSAPP BUTTON
=========================== */
#whatsapp-btn {
  position: fixed;
  bottom: 15px;
  right: 15px;
  width: 60px;
  height: 60px;
  z-index: 1001;
  transition: transform 0.3s, box-shadow 0.3s;
}

#whatsapp-btn img {
  width: 100%;
  height: 100%;
}

#whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow:0 0 20px #25D366,0 0 35px #25D366;
}

/* ===========================
   MUSIC PLAYER
=========================== */
.music-player {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin: 15px 0;
  padding: 10px 20px;
  background: rgba(0,50,100,0.6);
  border-radius: 12px;
  border: 2px solid #66ccff;
  box-shadow: 0 0 15px #66ccff;
}

.music-player button {
  padding: 8px 14px;
  font-size: 1em;
  border: none;
  border-radius: 8px;
  background: linear-gradient(45deg,#66ccff,#3399ff);
  color: #fff;
  cursor: pointer;
  transition: all 0.3s;
}

.music-player button:hover {
  transform: scale(1.1);
  box-shadow:0 0 15px #fff,0 0 25px #66ccff;
}

.music-player span { font-weight: 600; }

.music-player button.playing {
  animation: neonStrobe 1s infinite alternate;
}

@keyframes neonStrobe {
  0% { box-shadow:0 0 5px #ff00ff,0 0 10px #00ffff; background: linear-gradient(45deg,#ff00ff,#00ffff); }
  25% { box-shadow:0 0 10px #ffff00,0 0 20px #ff0000; background: linear-gradient(45deg,#ffff00,#ff0000); }
  50% { box-shadow:0 0 15px #00ff00,0 0 25px #0000ff; background: linear-gradient(45deg,#00ff00,#0000ff); }
  75% { box-shadow:0 0 20px #ff9900,0 0 30px #ff00ff; background: linear-gradient(45deg,#ff9900,#ff00ff); }
  100% { box-shadow:0 0 25px #00ffff,0 0 35px #ff00ff; background: linear-gradient(45deg,#00ffff,#ff00ff); }
}